renamed class BGWorker to bgWorker

Author: miao.lin

src/bitmessagemain.py

@@ -10,6 +10,12 @@
 # The software version variable is now held in shared.py
 
 #import ctypes
+try:
+    from gevent import monkey
+    monkey.patch_all()
+except ImportError as ex:
+    print "cannot find gevent"
+
 import signal  # Used to capture a Ctrl-C keypress so that Bitmessage can shutdown gracefully.
 # The next 3 are used for the API
 from SimpleXMLRPCServer import *